1915-16 opt KGV ½d green, single WATERMARK INVERTED, comp forme of 30, Electro 1, pos L31-60, 3rd setting opt with types acccbc on 5th horiz & 6 central abc strips. F-VF 8M/22MUH, small tropicalised spots on 2 stamps, all 6 of the central abc strips fully MUH. SG 65aw cat £2250 each as hinged singles, making pane cat £85,500 as M singles & strips, while the MUH should be double, making total est cat £148,000 = A$270,000. Amazing rarity with the only other multiples recorded being 2 or 3 abc strips, & even as a single hardly ever seen, with a single example appearing on the market only once every several years. Hinged singles have previously sold at auctions at $2500 level & retail nowdays is around $3000 ea, & MUH abc strips would be $10,000+ each, while the value of the unique acccbc bottom strip is difficult to calculate. Offerred at a very conservative reserve - counting the M singles at only $1000 ea, the MUH abc strips at only $4000-$5000 each, & the bottom strip of 6 at only $8000. An amazing item for an advanced exhibition collection, or as a major investment item, or for splitting up & resale. 2019 Ceremuga AIEP photo cert. (30) (P)